1、倒裝結構可以用來表示前面所闡述的肯定情況也適用于后者。例如，So has Bob, which means that Alice has as well.
2、用so加主語加助動詞／be動詞／情態動詞可以表示對于前面事實的肯定，意思是“的確如此”。例如，So does she, indicating that she does agree.
3、用so加形容詞／副詞加that來引導結果狀語從句。例如，So beautiful was the scenery that it took my breath away.
4、用so加形容詞／副詞加that來引導比較狀語從句。例如，So much taller is he than his brother.
